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Method of building a hybrid tower for a wind generator

一种混合塔、混凝土结构的技术，应用在风力发动机的装配、安装/支撑风力发动机的配置、风能发电等方向，能够解决施工进度延误、困难、影响等问题

Inactive Publication Date: 2011-10-12
SOLETANCHE FREYSSINET SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this approach is that it is sensitive to wind conditions and related regulatory constraints, which can have a significant impact on construction schedule delays
However, this technique is difficult to implement in practice

Method used

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  • Method of building a hybrid tower for a wind generator
  • Method of building a hybrid tower for a wind generator
  • Method of building a hybrid tower for a wind generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] like figure 1 As shown, a hybrid tower 1 of a wind turbine 2 has a lower part of a concrete structure 3 and an upper part of a metal mast 4 . The nacelle 5 of the wind turbine 2 is mounted on top of the metal mast 4 . The metal mast 4 can be made of one or several sections of cylindrical shaped steel assembled by bolting or welding.

[0028] In the embodiment shown in this figure, the concrete structure 3 comprises superimposed assemblies 6 assembled on site from precast concrete elements. The concrete structure 3 is generally conical, the cone angle remaining constant over its entire height. It is also possible to have a cylindrical concrete part above the cone if it is desired to maintain a constant distance between the tower wall and the rotor blades 7 of the wind turbine 2 . exist figure 1 In the example described, the cone has a circular base. It should be noted that various other shapes can also be used, such as a pyramid with a constant angle, which minimize...

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Abstract

In the method of building a hybrid tower, a metal mast (4) is erected and connected to a foundation (11) and a concrete structure (3) is built around the metal mast by using the metal mast as a support. Afterwards, the metal mast is disconnected from the foundation and lifted by telescoping and guiding the metal mast along concrete structure. Finally, the lifted metal mast is connected to the concrete structure.

Description

technical field [0001] The invention relates to the construction of a hybrid tower comprising a concrete lower part and a metal upper part. Background technique [0002] Generally, this type of tower structure is used to support the nacelle of a large-power (for example, 3 MW or more) offshore wind turbine above the ground level (for example, about 140 meters). [0003] As the height of the wind turbine tower increases, the cost of the traditional cylindrical steel mast increases sharply. In order to circumvent the technical limitations of cylindrical metal masts, some manufacturers have developed towers with steel frame (or truss) structures. However, this tower frame is not beautiful enough. [0004] Other manufacturers have constructed towers with cast-in-place concrete structures for at least part of the height of the tower, using climbing or sliding formwork. This method of construction is sensitive to temperature conditions (which are often encountered on site and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/14E04H12/02
CPCE04H12/02E04H12/08E04H12/12E04H12/34F05B2240/912Y02B10/30Y02E10/728F03D13/20F03D13/10Y02E10/72
Inventor 阿兰·胡伊恩赫图翁伯诺伊特·梅伦
Owner SOLETANCHE FREYSSINET SAS
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